Home / 22,525,908.78-31,085,566.65-12,738,274.86

Finding the Fourth Proportional to 22,525,908.78, 31,085,566.65 and 12,738,274.86

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Solution

The fourth proportional to 22,525,908.78, 31,085,566.65 and 12,738,274.86 is: 17,578,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,525,908.78 : 31,085,566.65 = 12,738,274.86 : x
  2. Step 2: Convert to fraction form
    22,525,908.78/31,085,566.65 = 12,738,274.86/x
  3. Step 3: Cross multiply
    22,525,908.78x = 31,085,566.65 × 12,738,274.86
  4. Step 4: Simplify right side
    22,525,908.78x = 395,976,492,166,549.38
  5. Step 5: Solve for x
    x = 395,976,492,166,549.38/22,525,908.78
  6. Step 6: Final answer
    x = 17,578,713.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.